Cast metal products, such as ingots, slabs, or plates, may have surface deformities due to contracting metal or otherwise. Surface deformities impact downstream processing of the cast metal products, such as in further rolling processes. Said cast metal products are typically scalped of an outer shell to eliminate surface deformities. However, scalping results in material lost and a lower resultant yield.
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Wagstaff, Robert Bruce, "Surface Ablation for Improved Lubrication and Elimination of Surface Defects", Technical Disclosure Commons, (April 15, 2020)